Search results for: ROUTING W LEO

• Routing decisions independent of queuing delays in broadband leo networks

  Publication

  • J. Jurski
  • J. Woźniak

  - Year 2009

  This paper presents an analysis of queuing and propagation delays of Inter-Satellite Links (ISLs) in broadband Low-Earth Orbit (LEO) satellite networks. It is shown that queuing delays are negligible in all reasonable working conditions of the broadband ISL network. This fact makes it possible to simplify the routing protocols in such networks and permits using already known multi-commodity flow solutions for routing. The performance...

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• Ship weather routing featuring w-MOEA/D and uncertainty handling

  Publication

  • R. Szłapczyński
  • J. Szłapczyńska
  • R. Vettor

  - APPLIED SOFT COMPUTING - Year 2023

  The paper presents a new version of evolutionary multi-objective weather routing (WR) for ships taking into account uncertainties of weather forecasts in route optimization. The method applies authors’ w-MOEA/D algorithm: MOEA/D framework incorporating Decision Maker’s (DM) preferences by means of w-dominance relation. Owing to this, DM preferences are taken into account throughout optimization, allowing the process to focus on...

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• Multipath routing for quality of service differentiation and network capacity optimization in broadband low-earth orbit systems

  Publication

  • J. Jurski
  • J. Woźniak

  - Year 2009

  This paper shows the importance of employing multiple different paths for routing in Inter-Satellite Link (ISL) networks in broadband Low-Earth Orbit (LEO) satellite systems. A theoretical analysis is presented and a routing concept is proposed to demonstrate three facts that make multipath routing especially important in broadband LEO networks: (1) differences in the propagation delays have a much greater impact on end-to-end...

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• Wyznaczanie tras w niskoorbitowych systemach satelitarnych - proponowane rozwiązania i możliwości ich zastosowania

  Publication

  • J. Jurski
  • J. Woźniak

  - Elektronizacja: podzespoły i zastosowania elektroniki - Year 2002

  Zaprezentowano podstawowe właściwości systemów satelitarnych, że szczególnym uwzględnieniem parametrów użytkowych systemów niskoorbitowych - LEO. Przedstawiono specyfikę routingu w konstalacjach niskoorbitowych. Dokonano przeglądu metod wyboru trasy.

• Elective surgery system strengthening: development, measurement, and validation of the surgical preparedness index across 1632 hospitals in 119 countries

  Publication

  • T. Abbott
  • M. Abou
  • D. Chaudhry
  • J. Davies
  • A. Desai
  • M. Fiore
  • J. Fitzgerald
  • A. Fowler
  • K. Futaba
  • R. Gujjuri... and 4373 others

  - The Lancet - Year 2022

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